apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: prometheus
  namespace: default
  annotations:
    # 1. Enable cert-manager for automatic TLS
    cert-manager.io/cluster-issuer: "letsencrypt-prod"
    
    # 2. NGINX Annotation for the specific ingress class
    kubernetes.io/ingress.class: "nginx"

    # 3. Optional: Recommended annotation for Prometheus to handle large query responses
    nginx.ingress.kubernetes.io/proxy-body-size: "50m"

spec:
  ingressClassName: nginx 
  
  tls:
    - hosts:
        - prometheus.ziffeldogip.de
      secretName: prometheus-tls # cert-manager will create this secret
  
  rules:
    - host: prometheus.ziffeldogip.de
      http:
        paths:
          - path: /
            pathType: Prefix
            backend:
              service:
                name: prometheus # Name of the ClusterIP Service
                port:
                  number: 80 # The port the Service exposes